Question

If (5x−2)^2=ax^2−bx+c, what is the value of a+c^2?

Answer 1

41

Step-by-step explanation: u first expand (5x-2)²

to get 25x²-20x+4

then by comparing it to ax²+bx=c

u get a=25 b=-20 and c=4

the u evaluate a+c²

25+4²

=41